Home / 105,090.04-145,023.05-57,344.18

Finding the Fourth Proportional to 105,090.04, 145,023.05 and 57,344.18

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Solution

The fourth proportional to 105,090.04, 145,023.05 and 57,344.18 is: 79,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.04 : 145,023.05 = 57,344.18 : x
  2. Step 2: Convert to fraction form
    105,090.04/145,023.05 = 57,344.18/x
  3. Step 3: Cross multiply
    105,090.04x = 145,023.05 × 57,344.18
  4. Step 4: Simplify right side
    105,090.04x = 8,316,227,883.35
  5. Step 5: Solve for x
    x = 8,316,227,883.35/105,090.04
  6. Step 6: Final answer
    x = 79,134.31

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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.