Home / 99,430.17-137,216.54-54,111.08

Finding the Fourth Proportional to 99,430.17, 137,216.54 and 54,111.08

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Solution

The fourth proportional to 99,430.17, 137,216.54 and 54,111.08 is: 74,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,430.17 : 137,216.54 = 54,111.08 : x
  2. Step 2: Convert to fraction form
    99,430.17/137,216.54 = 54,111.08/x
  3. Step 3: Cross multiply
    99,430.17x = 137,216.54 × 54,111.08
  4. Step 4: Simplify right side
    99,430.17x = 7,424,934,216.63
  5. Step 5: Solve for x
    x = 7,424,934,216.63/99,430.17
  6. Step 6: Final answer
    x = 74,674.86

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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.