Home / 180,884.10-249,620.73-100,319.07

Finding the Fourth Proportional to 180,884.10, 249,620.73 and 100,319.07

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Solution

The fourth proportional to 180,884.10, 249,620.73 and 100,319.07 is: 138,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,884.10 : 249,620.73 = 100,319.07 : x
  2. Step 2: Convert to fraction form
    180,884.10/249,620.73 = 100,319.07/x
  3. Step 3: Cross multiply
    180,884.10x = 249,620.73 × 100,319.07
  4. Step 4: Simplify right side
    180,884.10x = 25,041,719,486.32
  5. Step 5: Solve for x
    x = 25,041,719,486.32/180,884.10
  6. Step 6: Final answer
    x = 138,440.69

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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.