Home / 142,489.04-212,681.24-125,679.56

Finding the Fourth Proportional to 142,489.04, 212,681.24 and 125,679.56

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Solution

The fourth proportional to 142,489.04, 212,681.24 and 125,679.56 is: 187,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,489.04 : 212,681.24 = 125,679.56 : x
  2. Step 2: Convert to fraction form
    142,489.04/212,681.24 = 125,679.56/x
  3. Step 3: Cross multiply
    142,489.04x = 212,681.24 × 125,679.56
  4. Step 4: Simplify right side
    142,489.04x = 26,729,684,663.45
  5. Step 5: Solve for x
    x = 26,729,684,663.45/142,489.04
  6. Step 6: Final answer
    x = 187,591.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.