Home / 142,331.04-196,417.62-77,800.38

Finding the Fourth Proportional to 142,331.04, 196,417.62 and 77,800.38

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Solution

The fourth proportional to 142,331.04, 196,417.62 and 77,800.38 is: 107,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,331.04 : 196,417.62 = 77,800.38 : x
  2. Step 2: Convert to fraction form
    142,331.04/196,417.62 = 77,800.38/x
  3. Step 3: Cross multiply
    142,331.04x = 196,417.62 × 77,800.38
  4. Step 4: Simplify right side
    142,331.04x = 15,281,365,474.70
  5. Step 5: Solve for x
    x = 15,281,365,474.70/142,331.04
  6. Step 6: Final answer
    x = 107,364.95

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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.