Home / 103,979.07-143,484.42-59,264.19

Finding the Fourth Proportional to 103,979.07, 143,484.42 and 59,264.19

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Solution

The fourth proportional to 103,979.07, 143,484.42 and 59,264.19 is: 81,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,979.07 : 143,484.42 = 59,264.19 : x
  2. Step 2: Convert to fraction form
    103,979.07/143,484.42 = 59,264.19/x
  3. Step 3: Cross multiply
    103,979.07x = 143,484.42 × 59,264.19
  4. Step 4: Simplify right side
    103,979.07x = 8,503,487,928.92
  5. Step 5: Solve for x
    x = 8,503,487,928.92/103,979.07
  6. Step 6: Final answer
    x = 81,780.77

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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.