Home / 144,033.40-216,050.10-90,889.30

Finding the Fourth Proportional to 144,033.40, 216,050.10 and 90,889.30

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Solution

The fourth proportional to 144,033.40, 216,050.10 and 90,889.30 is: 136,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,033.40 : 216,050.10 = 90,889.30 : x
  2. Step 2: Convert to fraction form
    144,033.40/216,050.10 = 90,889.30/x
  3. Step 3: Cross multiply
    144,033.40x = 216,050.10 × 90,889.30
  4. Step 4: Simplify right side
    144,033.40x = 19,636,642,353.93
  5. Step 5: Solve for x
    x = 19,636,642,353.93/144,033.40
  6. Step 6: Final answer
    x = 136,333.95

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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.