Home / 103,785.19-155,663.51-40,561.45

Finding the Fourth Proportional to 103,785.19, 155,663.51 and 40,561.45

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Solution

The fourth proportional to 103,785.19, 155,663.51 and 40,561.45 is: 60,836.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,785.19 : 155,663.51 = 40,561.45 : x
  2. Step 2: Convert to fraction form
    103,785.19/155,663.51 = 40,561.45/x
  3. Step 3: Cross multiply
    103,785.19x = 155,663.51 × 40,561.45
  4. Step 4: Simplify right side
    103,785.19x = 6,313,937,085.72
  5. Step 5: Solve for x
    x = 6,313,937,085.72/103,785.19
  6. Step 6: Final answer
    x = 60,836.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.