Home / 142,406.08-196,605.67-88,763.76

Finding the Fourth Proportional to 142,406.08, 196,605.67 and 88,763.76

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Solution

The fourth proportional to 142,406.08, 196,605.67 and 88,763.76 is: 122,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,406.08 : 196,605.67 = 88,763.76 : x
  2. Step 2: Convert to fraction form
    142,406.08/196,605.67 = 88,763.76/x
  3. Step 3: Cross multiply
    142,406.08x = 196,605.67 × 88,763.76
  4. Step 4: Simplify right side
    142,406.08x = 17,451,457,793.10
  5. Step 5: Solve for x
    x = 17,451,457,793.10/142,406.08
  6. Step 6: Final answer
    x = 122,547.14

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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.