Home / 127,812.38-176,381.69-74,129.22

Finding the Fourth Proportional to 127,812.38, 176,381.69 and 74,129.22

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Solution

The fourth proportional to 127,812.38, 176,381.69 and 74,129.22 is: 102,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.38 : 176,381.69 = 74,129.22 : x
  2. Step 2: Convert to fraction form
    127,812.38/176,381.69 = 74,129.22/x
  3. Step 3: Cross multiply
    127,812.38x = 176,381.69 × 74,129.22
  4. Step 4: Simplify right side
    127,812.38x = 13,075,036,731.34
  5. Step 5: Solve for x
    x = 13,075,036,731.34/127,812.38
  6. Step 6: Final answer
    x = 102,298.68

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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.