Home / 105,285.47-145,293.71-59,963.45

Finding the Fourth Proportional to 105,285.47, 145,293.71 and 59,963.45

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Solution

The fourth proportional to 105,285.47, 145,293.71 and 59,963.45 is: 82,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,285.47 : 145,293.71 = 59,963.45 : x
  2. Step 2: Convert to fraction form
    105,285.47/145,293.71 = 59,963.45/x
  3. Step 3: Cross multiply
    105,285.47x = 145,293.71 × 59,963.45
  4. Step 4: Simplify right side
    105,285.47x = 8,712,311,088.61
  5. Step 5: Solve for x
    x = 8,712,311,088.61/105,285.47
  6. Step 6: Final answer
    x = 82,749.42

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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.