Home / 156,699.46-216,423.30-105,624.10

Finding the Fourth Proportional to 156,699.46, 216,423.30 and 105,624.10

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Solution

The fourth proportional to 156,699.46, 216,423.30 and 105,624.10 is: 145,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,699.46 : 216,423.30 = 105,624.10 : x
  2. Step 2: Convert to fraction form
    156,699.46/216,423.30 = 105,624.10/x
  3. Step 3: Cross multiply
    156,699.46x = 216,423.30 × 105,624.10
  4. Step 4: Simplify right side
    156,699.46x = 22,859,516,281.53
  5. Step 5: Solve for x
    x = 22,859,516,281.53/156,699.46
  6. Step 6: Final answer
    x = 145,881.27

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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.