Home / 105,227.07-145,211.54-57,479.19

Finding the Fourth Proportional to 105,227.07, 145,211.54 and 57,479.19

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Solution

The fourth proportional to 105,227.07, 145,211.54 and 57,479.19 is: 79,320.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,227.07 : 145,211.54 = 57,479.19 : x
  2. Step 2: Convert to fraction form
    105,227.07/145,211.54 = 57,479.19/x
  3. Step 3: Cross multiply
    105,227.07x = 145,211.54 × 57,479.19
  4. Step 4: Simplify right side
    105,227.07x = 8,346,641,410.46
  5. Step 5: Solve for x
    x = 8,346,641,410.46/105,227.07
  6. Step 6: Final answer
    x = 79,320.29

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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.