Home / 105,269.95-145,276.12-57,526.38

Finding the Fourth Proportional to 105,269.95, 145,276.12 and 57,526.38

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Solution

The fourth proportional to 105,269.95, 145,276.12 and 57,526.38 is: 79,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,269.95 : 145,276.12 = 57,526.38 : x
  2. Step 2: Convert to fraction form
    105,269.95/145,276.12 = 57,526.38/x
  3. Step 3: Cross multiply
    105,269.95x = 145,276.12 × 57,526.38
  4. Step 4: Simplify right side
    105,269.95x = 8,357,208,866.47
  5. Step 5: Solve for x
    x = 8,357,208,866.47/105,269.95
  6. Step 6: Final answer
    x = 79,388.36

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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.