Home / 105,319.97-145,341.58-57,573.51

Finding the Fourth Proportional to 105,319.97, 145,341.58 and 57,573.51

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Solution

The fourth proportional to 105,319.97, 145,341.58 and 57,573.51 is: 79,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.97 : 145,341.58 = 57,573.51 : x
  2. Step 2: Convert to fraction form
    105,319.97/145,341.58 = 57,573.51/x
  3. Step 3: Cross multiply
    105,319.97x = 145,341.58 × 57,573.51
  4. Step 4: Simplify right side
    105,319.97x = 8,367,824,621.68
  5. Step 5: Solve for x
    x = 8,367,824,621.68/105,319.97
  6. Step 6: Final answer
    x = 79,451.45

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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.