Home / 142,818.50-197,007.45-89,077.70

Finding the Fourth Proportional to 142,818.50, 197,007.45 and 89,077.70

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Solution

The fourth proportional to 142,818.50, 197,007.45 and 89,077.70 is: 122,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,818.50 : 197,007.45 = 89,077.70 : x
  2. Step 2: Convert to fraction form
    142,818.50/197,007.45 = 89,077.70/x
  3. Step 3: Cross multiply
    142,818.50x = 197,007.45 × 89,077.70
  4. Step 4: Simplify right side
    142,818.50x = 17,548,970,528.87
  5. Step 5: Solve for x
    x = 17,548,970,528.87/142,818.50
  6. Step 6: Final answer
    x = 122,876.03

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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.