Home / 102,430.56-141,349.38-57,113.48

Finding the Fourth Proportional to 102,430.56, 141,349.38 and 57,113.48

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Solution

The fourth proportional to 102,430.56, 141,349.38 and 57,113.48 is: 78,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,430.56 : 141,349.38 = 57,113.48 : x
  2. Step 2: Convert to fraction form
    102,430.56/141,349.38 = 57,113.48/x
  3. Step 3: Cross multiply
    102,430.56x = 141,349.38 × 57,113.48
  4. Step 4: Simplify right side
    102,430.56x = 8,072,954,987.64
  5. Step 5: Solve for x
    x = 8,072,954,987.64/102,430.56
  6. Step 6: Final answer
    x = 78,813.93

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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.