Home / 156,746.74-216,376.68-105,828.40

Finding the Fourth Proportional to 156,746.74, 216,376.68 and 105,828.40

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Solution

The fourth proportional to 156,746.74, 216,376.68 and 105,828.40 is: 146,087.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,746.74 : 216,376.68 = 105,828.40 : x
  2. Step 2: Convert to fraction form
    156,746.74/216,376.68 = 105,828.40/x
  3. Step 3: Cross multiply
    156,746.74x = 216,376.68 × 105,828.40
  4. Step 4: Simplify right side
    156,746.74x = 22,898,797,841.71
  5. Step 5: Solve for x
    x = 22,898,797,841.71/156,746.74
  6. Step 6: Final answer
    x = 146,087.87

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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.