Home / 98,371.12-135,590.28-69,700.40

Finding the Fourth Proportional to 98,371.12, 135,590.28 and 69,700.40

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Solution

The fourth proportional to 98,371.12, 135,590.28 and 69,700.40 is: 96,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,371.12 : 135,590.28 = 69,700.40 : x
  2. Step 2: Convert to fraction form
    98,371.12/135,590.28 = 69,700.40/x
  3. Step 3: Cross multiply
    98,371.12x = 135,590.28 × 69,700.40
  4. Step 4: Simplify right side
    98,371.12x = 9,450,696,752.11
  5. Step 5: Solve for x
    x = 9,450,696,752.11/98,371.12
  6. Step 6: Final answer
    x = 96,071.86

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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.