Home / 149,955.60-224,897.40-86,638.80

Finding the Fourth Proportional to 149,955.60, 224,897.40 and 86,638.80

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Solution

The fourth proportional to 149,955.60, 224,897.40 and 86,638.80 is: 129,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,955.60 : 224,897.40 = 86,638.80 : x
  2. Step 2: Convert to fraction form
    149,955.60/224,897.40 = 86,638.80/x
  3. Step 3: Cross multiply
    149,955.60x = 224,897.40 × 86,638.80
  4. Step 4: Simplify right side
    149,955.60x = 19,484,840,859.12
  5. Step 5: Solve for x
    x = 19,484,840,859.12/149,955.60
  6. Step 6: Final answer
    x = 129,937.40

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1.5x scale

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.