Home / 115,437.80-173,156.70-53,108.30

Finding the Fourth Proportional to 115,437.80, 173,156.70 and 53,108.30

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Solution

The fourth proportional to 115,437.80, 173,156.70 and 53,108.30 is: 79,662.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,437.80 : 173,156.70 = 53,108.30 : x
  2. Step 2: Convert to fraction form
    115,437.80/173,156.70 = 53,108.30/x
  3. Step 3: Cross multiply
    115,437.80x = 173,156.70 × 53,108.30
  4. Step 4: Simplify right side
    115,437.80x = 9,196,057,970.61
  5. Step 5: Solve for x
    x = 9,196,057,970.61/115,437.80
  6. Step 6: Final answer
    x = 79,662.45

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1.5x scale

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.