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Finding the Fourth Proportional to 156,547, 216,034.86 and 89,480.44

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Solution

The fourth proportional to 156,547, 216,034.86 and 89,480.44 is: 123,483.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,547 : 216,034.86 = 89,480.44 : x
  2. Step 2: Convert to fraction form
    156,547/216,034.86 = 89,480.44/x
  3. Step 3: Cross multiply
    156,547x = 216,034.86 × 89,480.44
  4. Step 4: Simplify right side
    156,547x = 19,330,894,328.14
  5. Step 5: Solve for x
    x = 19,330,894,328.14/156,547
  6. Step 6: Final answer
    x = 123,483.01

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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.