Home / 142,098.23-196,128.45-93,708.86

Finding the Fourth Proportional to 142,098.23, 196,128.45 and 93,708.86

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Solution

The fourth proportional to 142,098.23, 196,128.45 and 93,708.86 is: 129,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,098.23 : 196,128.45 = 93,708.86 : x
  2. Step 2: Convert to fraction form
    142,098.23/196,128.45 = 93,708.86/x
  3. Step 3: Cross multiply
    142,098.23x = 196,128.45 × 93,708.86
  4. Step 4: Simplify right side
    142,098.23x = 18,378,972,482.42
  5. Step 5: Solve for x
    x = 18,378,972,482.42/142,098.23
  6. Step 6: Final answer
    x = 129,339.92

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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.