Home / 98,729.49-136,104.98-70,385.97

Finding the Fourth Proportional to 98,729.49, 136,104.98 and 70,385.97

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Solution

The fourth proportional to 98,729.49, 136,104.98 and 70,385.97 is: 97,031.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.49 : 136,104.98 = 70,385.97 : x
  2. Step 2: Convert to fraction form
    98,729.49/136,104.98 = 70,385.97/x
  3. Step 3: Cross multiply
    98,729.49x = 136,104.98 × 70,385.97
  4. Step 4: Simplify right side
    98,729.49x = 9,579,880,534.57
  5. Step 5: Solve for x
    x = 9,579,880,534.57/98,729.49
  6. Step 6: Final answer
    x = 97,031.61

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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.