Home / 143,482.07-215,115.98-98,981.88

Finding the Fourth Proportional to 143,482.07, 215,115.98 and 98,981.88

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Solution

The fourth proportional to 143,482.07, 215,115.98 and 98,981.88 is: 148,398.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,482.07 : 215,115.98 = 98,981.88 : x
  2. Step 2: Convert to fraction form
    143,482.07/215,115.98 = 98,981.88/x
  3. Step 3: Cross multiply
    143,482.07x = 215,115.98 × 98,981.88
  4. Step 4: Simplify right side
    143,482.07x = 21,292,583,623.53
  5. Step 5: Solve for x
    x = 21,292,583,623.53/143,482.07
  6. Step 6: Final answer
    x = 148,398.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.