Home / 105,320.07-145,341.69-57,573.75

Finding the Fourth Proportional to 105,320.07, 145,341.69 and 57,573.75

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Solution

The fourth proportional to 105,320.07, 145,341.69 and 57,573.75 is: 79,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,320.07 : 145,341.69 = 57,573.75 : x
  2. Step 2: Convert to fraction form
    105,320.07/145,341.69 = 57,573.75/x
  3. Step 3: Cross multiply
    105,320.07x = 145,341.69 × 57,573.75
  4. Step 4: Simplify right side
    105,320.07x = 8,367,866,124.64
  5. Step 5: Solve for x
    x = 8,367,866,124.64/105,320.07
  6. Step 6: Final answer
    x = 79,451.77

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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.