Home / 105,089.55-145,025.69-57,344.91

Finding the Fourth Proportional to 105,089.55, 145,025.69 and 57,344.91

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Solution

The fourth proportional to 105,089.55, 145,025.69 and 57,344.91 is: 79,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,089.55 : 145,025.69 = 57,344.91 : x
  2. Step 2: Convert to fraction form
    105,089.55/145,025.69 = 57,344.91/x
  3. Step 3: Cross multiply
    105,089.55x = 145,025.69 × 57,344.91
  4. Step 4: Simplify right side
    105,089.55x = 8,316,485,140.74
  5. Step 5: Solve for x
    x = 8,316,485,140.74/105,089.55
  6. Step 6: Final answer
    x = 79,137.13

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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.