Home / 147,931.32-221,908.32-42,751.20

Finding the Fourth Proportional to 147,931.32, 221,908.32 and 42,751.20

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Solution

The fourth proportional to 147,931.32, 221,908.32 and 42,751.20 is: 64,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,931.32 : 221,908.32 = 42,751.20 : x
  2. Step 2: Convert to fraction form
    147,931.32/221,908.32 = 42,751.20/x
  3. Step 3: Cross multiply
    147,931.32x = 221,908.32 × 42,751.20
  4. Step 4: Simplify right side
    147,931.32x = 9,486,846,969.98
  5. Step 5: Solve for x
    x = 9,486,846,969.98/147,931.32
  6. Step 6: Final answer
    x = 64,130.08

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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.