Home / 156,637.03-216,159.29-85,017.07

Finding the Fourth Proportional to 156,637.03, 216,159.29 and 85,017.07

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Solution

The fourth proportional to 156,637.03, 216,159.29 and 85,017.07 is: 117,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.03 : 216,159.29 = 85,017.07 : x
  2. Step 2: Convert to fraction form
    156,637.03/216,159.29 = 85,017.07/x
  3. Step 3: Cross multiply
    156,637.03x = 216,159.29 × 85,017.07
  4. Step 4: Simplify right side
    156,637.03x = 18,377,229,489.08
  5. Step 5: Solve for x
    x = 18,377,229,489.08/156,637.03
  6. Step 6: Final answer
    x = 117,323.66

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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.