Home / 134,767.21-185,980.04-74,340.40

Finding the Fourth Proportional to 134,767.21, 185,980.04 and 74,340.40

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Solution

The fourth proportional to 134,767.21, 185,980.04 and 74,340.40 is: 102,590.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,767.21 : 185,980.04 = 74,340.40 : x
  2. Step 2: Convert to fraction form
    134,767.21/185,980.04 = 74,340.40/x
  3. Step 3: Cross multiply
    134,767.21x = 185,980.04 × 74,340.40
  4. Step 4: Simplify right side
    134,767.21x = 13,825,830,565.62
  5. Step 5: Solve for x
    x = 13,825,830,565.62/134,767.21
  6. Step 6: Final answer
    x = 102,590.46

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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.