Home / 156,636.13-216,155.40-85,015.52

Finding the Fourth Proportional to 156,636.13, 216,155.40 and 85,015.52

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Solution

The fourth proportional to 156,636.13, 216,155.40 and 85,015.52 is: 117,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.13 : 216,155.40 = 85,015.52 : x
  2. Step 2: Convert to fraction form
    156,636.13/216,155.40 = 85,015.52/x
  3. Step 3: Cross multiply
    156,636.13x = 216,155.40 × 85,015.52
  4. Step 4: Simplify right side
    156,636.13x = 18,376,563,731.81
  5. Step 5: Solve for x
    x = 18,376,563,731.81/156,636.13
  6. Step 6: Final answer
    x = 117,320.08

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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.