Home / 98,930.16-136,527.12-70,703.28

Finding the Fourth Proportional to 98,930.16, 136,527.12 and 70,703.28

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Solution

The fourth proportional to 98,930.16, 136,527.12 and 70,703.28 is: 97,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,930.16 : 136,527.12 = 70,703.28 : x
  2. Step 2: Convert to fraction form
    98,930.16/136,527.12 = 70,703.28/x
  3. Step 3: Cross multiply
    98,930.16x = 136,527.12 × 70,703.28
  4. Step 4: Simplify right side
    98,930.16x = 9,652,915,192.95
  5. Step 5: Solve for x
    x = 9,652,915,192.95/98,930.16
  6. Step 6: Final answer
    x = 97,573.03

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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.