Home / 158,172.12-218,281.02-86,552.10

Finding the Fourth Proportional to 158,172.12, 218,281.02 and 86,552.10

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Solution

The fourth proportional to 158,172.12, 218,281.02 and 86,552.10 is: 119,443.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,172.12 : 218,281.02 = 86,552.10 : x
  2. Step 2: Convert to fraction form
    158,172.12/218,281.02 = 86,552.10/x
  3. Step 3: Cross multiply
    158,172.12x = 218,281.02 × 86,552.10
  4. Step 4: Simplify right side
    158,172.12x = 18,892,680,671.14
  5. Step 5: Solve for x
    x = 18,892,680,671.14/158,172.12
  6. Step 6: Final answer
    x = 119,443.81

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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.