Home / 147,931.60-221,767.80-88,704.40

Finding the Fourth Proportional to 147,931.60, 221,767.80 and 88,704.40

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Solution

The fourth proportional to 147,931.60, 221,767.80 and 88,704.40 is: 132,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,931.60 : 221,767.80 = 88,704.40 : x
  2. Step 2: Convert to fraction form
    147,931.60/221,767.80 = 88,704.40/x
  3. Step 3: Cross multiply
    147,931.60x = 221,767.80 × 88,704.40
  4. Step 4: Simplify right side
    147,931.60x = 19,671,779,638.32
  5. Step 5: Solve for x
    x = 19,671,779,638.32/147,931.60
  6. Step 6: Final answer
    x = 132,978.89

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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.