Home / 156,637.24-216,159.54-85,017.28

Finding the Fourth Proportional to 156,637.24, 216,159.54 and 85,017.28

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Solution

The fourth proportional to 156,637.24, 216,159.54 and 85,017.28 is: 117,323.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.24 : 216,159.54 = 85,017.28 : x
  2. Step 2: Convert to fraction form
    156,637.24/216,159.54 = 85,017.28/x
  3. Step 3: Cross multiply
    156,637.24x = 216,159.54 × 85,017.28
  4. Step 4: Simplify right side
    156,637.24x = 18,377,296,136.85
  5. Step 5: Solve for x
    x = 18,377,296,136.85/156,637.24
  6. Step 6: Final answer
    x = 117,323.93

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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.