Home / 156,637.19-216,159.52-85,017.23

Finding the Fourth Proportional to 156,637.19, 216,159.52 and 85,017.23

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Solution

The fourth proportional to 156,637.19, 216,159.52 and 85,017.23 is: 117,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.19 : 216,159.52 = 85,017.23 : x
  2. Step 2: Convert to fraction form
    156,637.19/216,159.52 = 85,017.23/x
  3. Step 3: Cross multiply
    156,637.19x = 216,159.52 × 85,017.23
  4. Step 4: Simplify right side
    156,637.19x = 18,377,283,628.53
  5. Step 5: Solve for x
    x = 18,377,283,628.53/156,637.19
  6. Step 6: Final answer
    x = 117,323.88

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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.