Home / 131,386.79-181,313.98-74,798.17

Finding the Fourth Proportional to 131,386.79, 181,313.98 and 74,798.17

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Solution

The fourth proportional to 131,386.79, 181,313.98 and 74,798.17 is: 103,221.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.79 : 181,313.98 = 74,798.17 : x
  2. Step 2: Convert to fraction form
    131,386.79/181,313.98 = 74,798.17/x
  3. Step 3: Cross multiply
    131,386.79x = 181,313.98 × 74,798.17
  4. Step 4: Simplify right side
    131,386.79x = 13,561,953,259.14
  5. Step 5: Solve for x
    x = 13,561,953,259.14/131,386.79
  6. Step 6: Final answer
    x = 103,221.59

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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.