Home / 156,779.48-216,357.28-85,160.90

Finding the Fourth Proportional to 156,779.48, 216,357.28 and 85,160.90

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Solution

The fourth proportional to 156,779.48, 216,357.28 and 85,160.90 is: 117,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,779.48 : 216,357.28 = 85,160.90 : x
  2. Step 2: Convert to fraction form
    156,779.48/216,357.28 = 85,160.90/x
  3. Step 3: Cross multiply
    156,779.48x = 216,357.28 × 85,160.90
  4. Step 4: Simplify right side
    156,779.48x = 18,425,180,686.35
  5. Step 5: Solve for x
    x = 18,425,180,686.35/156,779.48
  6. Step 6: Final answer
    x = 117,522.91

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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.