Home / 105,273.06-145,272.54-57,528.06

Finding the Fourth Proportional to 105,273.06, 145,272.54 and 57,528.06

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Solution

The fourth proportional to 105,273.06, 145,272.54 and 57,528.06 is: 79,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,273.06 : 145,272.54 = 57,528.06 : x
  2. Step 2: Convert to fraction form
    105,273.06/145,272.54 = 57,528.06/x
  3. Step 3: Cross multiply
    105,273.06x = 145,272.54 × 57,528.06
  4. Step 4: Simplify right side
    105,273.06x = 8,357,247,397.47
  5. Step 5: Solve for x
    x = 8,357,247,397.47/105,273.06
  6. Step 6: Final answer
    x = 79,386.38

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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.