Home / 156,710.16-216,254.43-85,088.70

Finding the Fourth Proportional to 156,710.16, 216,254.43 and 85,088.70

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Solution

The fourth proportional to 156,710.16, 216,254.43 and 85,088.70 is: 117,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,710.16 : 216,254.43 = 85,088.70 : x
  2. Step 2: Convert to fraction form
    156,710.16/216,254.43 = 85,088.70/x
  3. Step 3: Cross multiply
    156,710.16x = 216,254.43 × 85,088.70
  4. Step 4: Simplify right side
    156,710.16x = 18,400,808,317.94
  5. Step 5: Solve for x
    x = 18,400,808,317.94/156,710.16
  6. Step 6: Final answer
    x = 117,419.37

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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.