Home / 118,432.55-163,434.94-64,716.33

Finding the Fourth Proportional to 118,432.55, 163,434.94 and 64,716.33

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Solution

The fourth proportional to 118,432.55, 163,434.94 and 64,716.33 is: 89,307.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,432.55 : 163,434.94 = 64,716.33 : x
  2. Step 2: Convert to fraction form
    118,432.55/163,434.94 = 64,716.33/x
  3. Step 3: Cross multiply
    118,432.55x = 163,434.94 × 64,716.33
  4. Step 4: Simplify right side
    118,432.55x = 10,576,909,510.57
  5. Step 5: Solve for x
    x = 10,576,909,510.57/118,432.55
  6. Step 6: Final answer
    x = 89,307.45

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1.5x scale

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.