Home / 144,820.18-216,947.47-68,810.55

Finding the Fourth Proportional to 144,820.18, 216,947.47 and 68,810.55

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Solution

The fourth proportional to 144,820.18, 216,947.47 and 68,810.55 is: 103,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,820.18 : 216,947.47 = 68,810.55 : x
  2. Step 2: Convert to fraction form
    144,820.18/216,947.47 = 68,810.55/x
  3. Step 3: Cross multiply
    144,820.18x = 216,947.47 × 68,810.55
  4. Step 4: Simplify right side
    144,820.18x = 14,928,274,731.81
  5. Step 5: Solve for x
    x = 14,928,274,731.81/144,820.18
  6. Step 6: Final answer
    x = 103,081.45

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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.