Home / 118,289.47-163,239.77-64,574.53

Finding the Fourth Proportional to 118,289.47, 163,239.77 and 64,574.53

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Solution

The fourth proportional to 118,289.47, 163,239.77 and 64,574.53 is: 89,113.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,289.47 : 163,239.77 = 64,574.53 : x
  2. Step 2: Convert to fraction form
    118,289.47/163,239.77 = 64,574.53/x
  3. Step 3: Cross multiply
    118,289.47x = 163,239.77 × 64,574.53
  4. Step 4: Simplify right side
    118,289.47x = 10,541,131,425.06
  5. Step 5: Solve for x
    x = 10,541,131,425.06/118,289.47
  6. Step 6: Final answer
    x = 89,113.02

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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.