Home / 236,937.04-326,972.26-129,507

Finding the Fourth Proportional to 236,937.04, 326,972.26 and 129,507

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Solution

The fourth proportional to 236,937.04, 326,972.26 and 129,507 is: 178,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,937.04 : 326,972.26 = 129,507 : x
  2. Step 2: Convert to fraction form
    236,937.04/326,972.26 = 129,507/x
  3. Step 3: Cross multiply
    236,937.04x = 326,972.26 × 129,507
  4. Step 4: Simplify right side
    236,937.04x = 42,345,196,475.82
  5. Step 5: Solve for x
    x = 42,345,196,475.82/236,937.04
  6. Step 6: Final answer
    x = 178,719.19

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1.5x scale

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.