Home / 98,680.40-147,082.53-93,075.61

Finding the Fourth Proportional to 98,680.40, 147,082.53 and 93,075.61

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Solution

The fourth proportional to 98,680.40, 147,082.53 and 93,075.61 is: 138,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,680.40 : 147,082.53 = 93,075.61 : x
  2. Step 2: Convert to fraction form
    98,680.40/147,082.53 = 93,075.61/x
  3. Step 3: Cross multiply
    98,680.40x = 147,082.53 × 93,075.61
  4. Step 4: Simplify right side
    98,680.40x = 13,689,796,200.09
  5. Step 5: Solve for x
    x = 13,689,796,200.09/98,680.40
  6. Step 6: Final answer
    x = 138,728.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.