Home / 105,274.59-145,280.89-57,526.91

Finding the Fourth Proportional to 105,274.59, 145,280.89 and 57,526.91

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Solution

The fourth proportional to 105,274.59, 145,280.89 and 57,526.91 is: 79,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,274.59 : 145,280.89 = 57,526.91 : x
  2. Step 2: Convert to fraction form
    105,274.59/145,280.89 = 57,526.91/x
  3. Step 3: Cross multiply
    105,274.59x = 145,280.89 × 57,526.91
  4. Step 4: Simplify right side
    105,274.59x = 8,357,560,574.06
  5. Step 5: Solve for x
    x = 8,357,560,574.06/105,274.59
  6. Step 6: Final answer
    x = 79,388.21

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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.