Home / 156,637.61-216,157.47-85,017.02

Finding the Fourth Proportional to 156,637.61, 216,157.47 and 85,017.02

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Solution

The fourth proportional to 156,637.61, 216,157.47 and 85,017.02 is: 117,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,637.61 : 216,157.47 = 85,017.02 : x
  2. Step 2: Convert to fraction form
    156,637.61/216,157.47 = 85,017.02/x
  3. Step 3: Cross multiply
    156,637.61x = 216,157.47 × 85,017.02
  4. Step 4: Simplify right side
    156,637.61x = 18,377,063,950.14
  5. Step 5: Solve for x
    x = 18,377,063,950.14/156,637.61
  6. Step 6: Final answer
    x = 117,322.17

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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.