Home / 105,295.39-145,261-62,829.38

Finding the Fourth Proportional to 105,295.39, 145,261 and 62,829.38

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Solution

The fourth proportional to 105,295.39, 145,261 and 62,829.38 is: 86,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,295.39 : 145,261 = 62,829.38 : x
  2. Step 2: Convert to fraction form
    105,295.39/145,261 = 62,829.38/x
  3. Step 3: Cross multiply
    105,295.39x = 145,261 × 62,829.38
  4. Step 4: Simplify right side
    105,295.39x = 9,126,658,568.18
  5. Step 5: Solve for x
    x = 9,126,658,568.18/105,295.39
  6. Step 6: Final answer
    x = 86,676.72

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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.