Home / 124,646.95-172,095.06-76,970.35

Finding the Fourth Proportional to 124,646.95, 172,095.06 and 76,970.35

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Solution

The fourth proportional to 124,646.95, 172,095.06 and 76,970.35 is: 106,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,646.95 : 172,095.06 = 76,970.35 : x
  2. Step 2: Convert to fraction form
    124,646.95/172,095.06 = 76,970.35/x
  3. Step 3: Cross multiply
    124,646.95x = 172,095.06 × 76,970.35
  4. Step 4: Simplify right side
    124,646.95x = 13,246,217,001.47
  5. Step 5: Solve for x
    x = 13,246,217,001.47/124,646.95
  6. Step 6: Final answer
    x = 106,269.88

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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.