Home / 109,875.11-164,819.10-42,407.51

Finding the Fourth Proportional to 109,875.11, 164,819.10 and 42,407.51

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Solution

The fourth proportional to 109,875.11, 164,819.10 and 42,407.51 is: 63,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,875.11 : 164,819.10 = 42,407.51 : x
  2. Step 2: Convert to fraction form
    109,875.11/164,819.10 = 42,407.51/x
  3. Step 3: Cross multiply
    109,875.11x = 164,819.10 × 42,407.51
  4. Step 4: Simplify right side
    109,875.11x = 6,989,566,807.35
  5. Step 5: Solve for x
    x = 6,989,566,807.35/109,875.11
  6. Step 6: Final answer
    x = 63,613.74

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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.