Home / 147,777.77-221,645.86-47,938.84

Finding the Fourth Proportional to 147,777.77, 221,645.86 and 47,938.84

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Solution

The fourth proportional to 147,777.77, 221,645.86 and 47,938.84 is: 71,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,777.77 : 221,645.86 = 47,938.84 : x
  2. Step 2: Convert to fraction form
    147,777.77/221,645.86 = 47,938.84/x
  3. Step 3: Cross multiply
    147,777.77x = 221,645.86 × 47,938.84
  4. Step 4: Simplify right side
    147,777.77x = 10,625,445,419.20
  5. Step 5: Solve for x
    x = 10,625,445,419.20/147,777.77
  6. Step 6: Final answer
    x = 71,901.51

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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.