Home / 147,695.02-203,390.31-128,305.15

Finding the Fourth Proportional to 147,695.02, 203,390.31 and 128,305.15

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Solution

The fourth proportional to 147,695.02, 203,390.31 and 128,305.15 is: 176,688.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,695.02 : 203,390.31 = 128,305.15 : x
  2. Step 2: Convert to fraction form
    147,695.02/203,390.31 = 128,305.15/x
  3. Step 3: Cross multiply
    147,695.02x = 203,390.31 × 128,305.15
  4. Step 4: Simplify right side
    147,695.02x = 26,096,024,233.10
  5. Step 5: Solve for x
    x = 26,096,024,233.10/147,695.02
  6. Step 6: Final answer
    x = 176,688.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.