Home / 105,079.17-145,009.73-57,333.52

Finding the Fourth Proportional to 105,079.17, 145,009.73 and 57,333.52

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Solution

The fourth proportional to 105,079.17, 145,009.73 and 57,333.52 is: 79,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,079.17 : 145,009.73 = 57,333.52 : x
  2. Step 2: Convert to fraction form
    105,079.17/145,009.73 = 57,333.52/x
  3. Step 3: Cross multiply
    105,079.17x = 145,009.73 × 57,333.52
  4. Step 4: Simplify right side
    105,079.17x = 8,313,918,255.15
  5. Step 5: Solve for x
    x = 8,313,918,255.15/105,079.17
  6. Step 6: Final answer
    x = 79,120.52

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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.