Home / 145,101.70-217,521.33-51,585.58

Finding the Fourth Proportional to 145,101.70, 217,521.33 and 51,585.58

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Solution

The fourth proportional to 145,101.70, 217,521.33 and 51,585.58 is: 77,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,101.70 : 217,521.33 = 51,585.58 : x
  2. Step 2: Convert to fraction form
    145,101.70/217,521.33 = 51,585.58/x
  3. Step 3: Cross multiply
    145,101.70x = 217,521.33 × 51,585.58
  4. Step 4: Simplify right side
    145,101.70x = 11,220,963,970.42
  5. Step 5: Solve for x
    x = 11,220,963,970.42/145,101.70
  6. Step 6: Final answer
    x = 77,331.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.