Home / 113,110.48-156,053.39-72,298.48

Finding the Fourth Proportional to 113,110.48, 156,053.39 and 72,298.48

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Solution

The fourth proportional to 113,110.48, 156,053.39 and 72,298.48 is: 99,746.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,110.48 : 156,053.39 = 72,298.48 : x
  2. Step 2: Convert to fraction form
    113,110.48/156,053.39 = 72,298.48/x
  3. Step 3: Cross multiply
    113,110.48x = 156,053.39 × 72,298.48
  4. Step 4: Simplify right side
    113,110.48x = 11,282,422,895.85
  5. Step 5: Solve for x
    x = 11,282,422,895.85/113,110.48
  6. Step 6: Final answer
    x = 99,746.93

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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.