Home / 107,258.32-148,038-61,943.68

Finding the Fourth Proportional to 107,258.32, 148,038 and 61,943.68

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Solution

The fourth proportional to 107,258.32, 148,038 and 61,943.68 is: 85,494.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,258.32 : 148,038 = 61,943.68 : x
  2. Step 2: Convert to fraction form
    107,258.32/148,038 = 61,943.68/x
  3. Step 3: Cross multiply
    107,258.32x = 148,038 × 61,943.68
  4. Step 4: Simplify right side
    107,258.32x = 9,170,018,499.84
  5. Step 5: Solve for x
    x = 9,170,018,499.84/107,258.32
  6. Step 6: Final answer
    x = 85,494.71

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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.