Home / 156,897.04-216,516.90-89,842

Finding the Fourth Proportional to 156,897.04, 216,516.90 and 89,842

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Solution

The fourth proportional to 156,897.04, 216,516.90 and 89,842 is: 123,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,897.04 : 216,516.90 = 89,842 : x
  2. Step 2: Convert to fraction form
    156,897.04/216,516.90 = 89,842/x
  3. Step 3: Cross multiply
    156,897.04x = 216,516.90 × 89,842
  4. Step 4: Simplify right side
    156,897.04x = 19,452,311,329.80
  5. Step 5: Solve for x
    x = 19,452,311,329.80/156,897.04
  6. Step 6: Final answer
    x = 123,981.38

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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.