Home / 145,738.02-218,340.65-105,657.65

Finding the Fourth Proportional to 145,738.02, 218,340.65 and 105,657.65

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Solution

The fourth proportional to 145,738.02, 218,340.65 and 105,657.65 is: 158,293.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,738.02 : 218,340.65 = 105,657.65 : x
  2. Step 2: Convert to fraction form
    145,738.02/218,340.65 = 105,657.65/x
  3. Step 3: Cross multiply
    145,738.02x = 218,340.65 × 105,657.65
  4. Step 4: Simplify right side
    145,738.02x = 23,069,358,358.48
  5. Step 5: Solve for x
    x = 23,069,358,358.48/145,738.02
  6. Step 6: Final answer
    x = 158,293.34

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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.