Home / 131,537.89-181,477.87-74,909.17

Finding the Fourth Proportional to 131,537.89, 181,477.87 and 74,909.17

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Solution

The fourth proportional to 131,537.89, 181,477.87 and 74,909.17 is: 103,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,537.89 : 181,477.87 = 74,909.17 : x
  2. Step 2: Convert to fraction form
    131,537.89/181,477.87 = 74,909.17/x
  3. Step 3: Cross multiply
    131,537.89x = 181,477.87 × 74,909.17
  4. Step 4: Simplify right side
    131,537.89x = 13,594,356,615.07
  5. Step 5: Solve for x
    x = 13,594,356,615.07/131,537.89
  6. Step 6: Final answer
    x = 103,349.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.