Home / 115,506,720.80-173,143,425.76-72,406,134.80

Finding the Fourth Proportional to 115,506,720.80, 173,143,425.76 and 72,406,134.80

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Solution

The fourth proportional to 115,506,720.80, 173,143,425.76 and 72,406,134.80 is: 108,536,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,506,720.80 : 173,143,425.76 = 72,406,134.80 : x
  2. Step 2: Convert to fraction form
    115,506,720.80/173,143,425.76 = 72,406,134.80/x
  3. Step 3: Cross multiply
    115,506,720.80x = 173,143,425.76 × 72,406,134.80
  4. Step 4: Simplify right side
    115,506,720.80x = 12,536,646,225,312,352
  5. Step 5: Solve for x
    x = 12,536,646,225,312,352/115,506,720.80
  6. Step 6: Final answer
    x = 108,536,075.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.