Home / 142,341.14-196,434.90-77,813.92

Finding the Fourth Proportional to 142,341.14, 196,434.90 and 77,813.92

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Solution

The fourth proportional to 142,341.14, 196,434.90 and 77,813.92 is: 107,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,341.14 : 196,434.90 = 77,813.92 : x
  2. Step 2: Convert to fraction form
    142,341.14/196,434.90 = 77,813.92/x
  3. Step 3: Cross multiply
    142,341.14x = 196,434.90 × 77,813.92
  4. Step 4: Simplify right side
    142,341.14x = 15,285,369,593.81
  5. Step 5: Solve for x
    x = 15,285,369,593.81/142,341.14
  6. Step 6: Final answer
    x = 107,385.47

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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.