Home / 181,009.28-249,788.96-100,435.08

Finding the Fourth Proportional to 181,009.28, 249,788.96 and 100,435.08

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Solution

The fourth proportional to 181,009.28, 249,788.96 and 100,435.08 is: 138,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,009.28 : 249,788.96 = 100,435.08 : x
  2. Step 2: Convert to fraction form
    181,009.28/249,788.96 = 100,435.08/x
  3. Step 3: Cross multiply
    181,009.28x = 249,788.96 × 100,435.08
  4. Step 4: Simplify right side
    181,009.28x = 25,087,574,180.72
  5. Step 5: Solve for x
    x = 25,087,574,180.72/181,009.28
  6. Step 6: Final answer
    x = 138,598.28

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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.