Home / 144,890.10-216,989.55-70,931.70

Finding the Fourth Proportional to 144,890.10, 216,989.55 and 70,931.70

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Solution

The fourth proportional to 144,890.10, 216,989.55 and 70,931.70 is: 106,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.10 : 216,989.55 = 70,931.70 : x
  2. Step 2: Convert to fraction form
    144,890.10/216,989.55 = 70,931.70/x
  3. Step 3: Cross multiply
    144,890.10x = 216,989.55 × 70,931.70
  4. Step 4: Simplify right side
    144,890.10x = 15,391,437,663.74
  5. Step 5: Solve for x
    x = 15,391,437,663.74/144,890.10
  6. Step 6: Final answer
    x = 106,228.36

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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.