Home / 147,756.35-221,656.40-54,254.81

Finding the Fourth Proportional to 147,756.35, 221,656.40 and 54,254.81

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Solution

The fourth proportional to 147,756.35, 221,656.40 and 54,254.81 is: 81,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,756.35 : 221,656.40 = 54,254.81 : x
  2. Step 2: Convert to fraction form
    147,756.35/221,656.40 = 54,254.81/x
  3. Step 3: Cross multiply
    147,756.35x = 221,656.40 × 54,254.81
  4. Step 4: Simplify right side
    147,756.35x = 12,025,926,353.61
  5. Step 5: Solve for x
    x = 12,025,926,353.61/147,756.35
  6. Step 6: Final answer
    x = 81,390.25

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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.