Home / 145,622.06-218,432.90-45,790.98

Finding the Fourth Proportional to 145,622.06, 218,432.90 and 45,790.98

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Solution

The fourth proportional to 145,622.06, 218,432.90 and 45,790.98 is: 68,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,622.06 : 218,432.90 = 45,790.98 : x
  2. Step 2: Convert to fraction form
    145,622.06/218,432.90 = 45,790.98/x
  3. Step 3: Cross multiply
    145,622.06x = 218,432.90 × 45,790.98
  4. Step 4: Simplify right side
    145,622.06x = 10,002,256,326.29
  5. Step 5: Solve for x
    x = 10,002,256,326.29/145,622.06
  6. Step 6: Final answer
    x = 68,686.41

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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.