Home / 105,232.20-145,223.56-57,486.34

Finding the Fourth Proportional to 105,232.20, 145,223.56 and 57,486.34

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Solution

The fourth proportional to 105,232.20, 145,223.56 and 57,486.34 is: 79,332.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,232.20 : 145,223.56 = 57,486.34 : x
  2. Step 2: Convert to fraction form
    105,232.20/145,223.56 = 57,486.34/x
  3. Step 3: Cross multiply
    105,232.20x = 145,223.56 × 57,486.34
  4. Step 4: Simplify right side
    105,232.20x = 8,348,370,946.17
  5. Step 5: Solve for x
    x = 8,348,370,946.17/105,232.20
  6. Step 6: Final answer
    x = 79,332.86

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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.