Home / 156,948.38-216,587.69-85,328.40

Finding the Fourth Proportional to 156,948.38, 216,587.69 and 85,328.40

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Solution

The fourth proportional to 156,948.38, 216,587.69 and 85,328.40 is: 117,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,948.38 : 216,587.69 = 85,328.40 : x
  2. Step 2: Convert to fraction form
    156,948.38/216,587.69 = 85,328.40/x
  3. Step 3: Cross multiply
    156,948.38x = 216,587.69 × 85,328.40
  4. Step 4: Simplify right side
    156,948.38x = 18,481,081,047.40
  5. Step 5: Solve for x
    x = 18,481,081,047.40/156,948.38
  6. Step 6: Final answer
    x = 117,752.61

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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.