Home / 162,075.20-243,003.45-77,875.70

Finding the Fourth Proportional to 162,075.20, 243,003.45 and 77,875.70

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Solution

The fourth proportional to 162,075.20, 243,003.45 and 77,875.70 is: 116,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,075.20 : 243,003.45 = 77,875.70 : x
  2. Step 2: Convert to fraction form
    162,075.20/243,003.45 = 77,875.70/x
  3. Step 3: Cross multiply
    162,075.20x = 243,003.45 × 77,875.70
  4. Step 4: Simplify right side
    162,075.20x = 18,924,063,771.17
  5. Step 5: Solve for x
    x = 18,924,063,771.17/162,075.20
  6. Step 6: Final answer
    x = 116,761.01

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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.