Home / 105,159.24-145,119.36-57,412.04

Finding the Fourth Proportional to 105,159.24, 145,119.36 and 57,412.04

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Solution

The fourth proportional to 105,159.24, 145,119.36 and 57,412.04 is: 79,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,159.24 : 145,119.36 = 57,412.04 : x
  2. Step 2: Convert to fraction form
    105,159.24/145,119.36 = 57,412.04/x
  3. Step 3: Cross multiply
    105,159.24x = 145,119.36 × 57,412.04
  4. Step 4: Simplify right side
    105,159.24x = 8,331,598,501.09
  5. Step 5: Solve for x
    x = 8,331,598,501.09/105,159.24
  6. Step 6: Final answer
    x = 79,228.40

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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.