Home / 118,801.67-177,710.02-90,507.65

Finding the Fourth Proportional to 118,801.67, 177,710.02 and 90,507.65

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Solution

The fourth proportional to 118,801.67, 177,710.02 and 90,507.65 is: 135,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,801.67 : 177,710.02 = 90,507.65 : x
  2. Step 2: Convert to fraction form
    118,801.67/177,710.02 = 90,507.65/x
  3. Step 3: Cross multiply
    118,801.67x = 177,710.02 × 90,507.65
  4. Step 4: Simplify right side
    118,801.67x = 16,084,116,291.65
  5. Step 5: Solve for x
    x = 16,084,116,291.65/118,801.67
  6. Step 6: Final answer
    x = 135,386.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.