Home / 98,931.46-136,518.91-63,117.65

Finding the Fourth Proportional to 98,931.46, 136,518.91 and 63,117.65

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Solution

The fourth proportional to 98,931.46, 136,518.91 and 63,117.65 is: 87,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,931.46 : 136,518.91 = 63,117.65 : x
  2. Step 2: Convert to fraction form
    98,931.46/136,518.91 = 63,117.65/x
  3. Step 3: Cross multiply
    98,931.46x = 136,518.91 × 63,117.65
  4. Step 4: Simplify right side
    98,931.46x = 8,616,752,779.76
  5. Step 5: Solve for x
    x = 8,616,752,779.76/98,931.46
  6. Step 6: Final answer
    x = 87,098.21

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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.