Home / 118,510.09-163,546.50-70,754.53

Finding the Fourth Proportional to 118,510.09, 163,546.50 and 70,754.53

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Solution

The fourth proportional to 118,510.09, 163,546.50 and 70,754.53 is: 97,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,510.09 : 163,546.50 = 70,754.53 : x
  2. Step 2: Convert to fraction form
    118,510.09/163,546.50 = 70,754.53/x
  3. Step 3: Cross multiply
    118,510.09x = 163,546.50 × 70,754.53
  4. Step 4: Simplify right side
    118,510.09x = 11,571,655,740.65
  5. Step 5: Solve for x
    x = 11,571,655,740.65/118,510.09
  6. Step 6: Final answer
    x = 97,642.79

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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.