Home / 98,729.11-136,104.46-70,385.59

Finding the Fourth Proportional to 98,729.11, 136,104.46 and 70,385.59

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Solution

The fourth proportional to 98,729.11, 136,104.46 and 70,385.59 is: 97,031.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.11 : 136,104.46 = 70,385.59 : x
  2. Step 2: Convert to fraction form
    98,729.11/136,104.46 = 70,385.59/x
  3. Step 3: Cross multiply
    98,729.11x = 136,104.46 × 70,385.59
  4. Step 4: Simplify right side
    98,729.11x = 9,579,792,718.73
  5. Step 5: Solve for x
    x = 9,579,792,718.73/98,729.11
  6. Step 6: Final answer
    x = 97,031.09

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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.