Home / 109,345.20-163,888.20-56,727.60

Finding the Fourth Proportional to 109,345.20, 163,888.20 and 56,727.60

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Solution

The fourth proportional to 109,345.20, 163,888.20 and 56,727.60 is: 85,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,345.20 : 163,888.20 = 56,727.60 : x
  2. Step 2: Convert to fraction form
    109,345.20/163,888.20 = 56,727.60/x
  3. Step 3: Cross multiply
    109,345.20x = 163,888.20 × 56,727.60
  4. Step 4: Simplify right side
    109,345.20x = 9,296,984,254.32
  5. Step 5: Solve for x
    x = 9,296,984,254.32/109,345.20
  6. Step 6: Final answer
    x = 85,024.16

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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.