Home / 105,270.24-157,905.36-42,945.60

Finding the Fourth Proportional to 105,270.24, 157,905.36 and 42,945.60

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Solution

The fourth proportional to 105,270.24, 157,905.36 and 42,945.60 is: 64,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,270.24 : 157,905.36 = 42,945.60 : x
  2. Step 2: Convert to fraction form
    105,270.24/157,905.36 = 42,945.60/x
  3. Step 3: Cross multiply
    105,270.24x = 157,905.36 × 42,945.60
  4. Step 4: Simplify right side
    105,270.24x = 6,781,340,428.42
  5. Step 5: Solve for x
    x = 6,781,340,428.42/105,270.24
  6. Step 6: Final answer
    x = 64,418.40

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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.