Home / 156,637.29-216,159.63-85,017.30

Finding the Fourth Proportional to 156,637.29, 216,159.63 and 85,017.30

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Solution

The fourth proportional to 156,637.29, 216,159.63 and 85,017.30 is: 117,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.29 : 216,159.63 = 85,017.30 : x
  2. Step 2: Convert to fraction form
    156,637.29/216,159.63 = 85,017.30/x
  3. Step 3: Cross multiply
    156,637.29x = 216,159.63 × 85,017.30
  4. Step 4: Simplify right side
    156,637.29x = 18,377,308,111.60
  5. Step 5: Solve for x
    x = 18,377,308,111.60/156,637.29
  6. Step 6: Final answer
    x = 117,323.97

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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.