Home / 236,516.04-326,389.50-129,085.20

Finding the Fourth Proportional to 236,516.04, 326,389.50 and 129,085.20

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Solution

The fourth proportional to 236,516.04, 326,389.50 and 129,085.20 is: 178,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,516.04 : 326,389.50 = 129,085.20 : x
  2. Step 2: Convert to fraction form
    236,516.04/326,389.50 = 129,085.20/x
  3. Step 3: Cross multiply
    236,516.04x = 326,389.50 × 129,085.20
  4. Step 4: Simplify right side
    236,516.04x = 42,132,053,885.40
  5. Step 5: Solve for x
    x = 42,132,053,885.40/236,516.04
  6. Step 6: Final answer
    x = 178,136.14

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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.