Home / 155,111.12-232,228.47-126,478.34

Finding the Fourth Proportional to 155,111.12, 232,228.47 and 126,478.34

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Solution

The fourth proportional to 155,111.12, 232,228.47 and 126,478.34 is: 189,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,111.12 : 232,228.47 = 126,478.34 : x
  2. Step 2: Convert to fraction form
    155,111.12/232,228.47 = 126,478.34/x
  3. Step 3: Cross multiply
    155,111.12x = 232,228.47 × 126,478.34
  4. Step 4: Simplify right side
    155,111.12x = 29,371,871,386.34
  5. Step 5: Solve for x
    x = 29,371,871,386.34/155,111.12
  6. Step 6: Final answer
    x = 189,360.19

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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.