Home / 113,970.15-157,278.39-62,981.46

Finding the Fourth Proportional to 113,970.15, 157,278.39 and 62,981.46

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Solution

The fourth proportional to 113,970.15, 157,278.39 and 62,981.46 is: 86,914.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,970.15 : 157,278.39 = 62,981.46 : x
  2. Step 2: Convert to fraction form
    113,970.15/157,278.39 = 62,981.46/x
  3. Step 3: Cross multiply
    113,970.15x = 157,278.39 × 62,981.46
  4. Step 4: Simplify right side
    113,970.15x = 9,905,622,628.65
  5. Step 5: Solve for x
    x = 9,905,622,628.65/113,970.15
  6. Step 6: Final answer
    x = 86,914.18

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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.