Home / 111,088.47-153,298.30-63,357.20

Finding the Fourth Proportional to 111,088.47, 153,298.30 and 63,357.20

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Solution

The fourth proportional to 111,088.47, 153,298.30 and 63,357.20 is: 87,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,088.47 : 153,298.30 = 63,357.20 : x
  2. Step 2: Convert to fraction form
    111,088.47/153,298.30 = 63,357.20/x
  3. Step 3: Cross multiply
    111,088.47x = 153,298.30 × 63,357.20
  4. Step 4: Simplify right side
    111,088.47x = 9,712,551,052.76
  5. Step 5: Solve for x
    x = 9,712,551,052.76/111,088.47
  6. Step 6: Final answer
    x = 87,430.78

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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.