Home / 115,631.40-159,620.51-70,323.93

Finding the Fourth Proportional to 115,631.40, 159,620.51 and 70,323.93

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Solution

The fourth proportional to 115,631.40, 159,620.51 and 70,323.93 is: 97,076.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,631.40 : 159,620.51 = 70,323.93 : x
  2. Step 2: Convert to fraction form
    115,631.40/159,620.51 = 70,323.93/x
  3. Step 3: Cross multiply
    115,631.40x = 159,620.51 × 70,323.93
  4. Step 4: Simplify right side
    115,631.40x = 11,225,141,747.61
  5. Step 5: Solve for x
    x = 11,225,141,747.61/115,631.40
  6. Step 6: Final answer
    x = 97,076.94

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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.