Home / 105,270.95-145,277.50-57,527.38

Finding the Fourth Proportional to 105,270.95, 145,277.50 and 57,527.38

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Solution

The fourth proportional to 105,270.95, 145,277.50 and 57,527.38 is: 79,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,270.95 : 145,277.50 = 57,527.38 : x
  2. Step 2: Convert to fraction form
    105,270.95/145,277.50 = 57,527.38/x
  3. Step 3: Cross multiply
    105,270.95x = 145,277.50 × 57,527.38
  4. Step 4: Simplify right side
    105,270.95x = 8,357,433,947.95
  5. Step 5: Solve for x
    x = 8,357,433,947.95/105,270.95
  6. Step 6: Final answer
    x = 79,389.75

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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.