Home / 180,842.74-249,588.81-100,288.18

Finding the Fourth Proportional to 180,842.74, 249,588.81 and 100,288.18

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Solution

The fourth proportional to 180,842.74, 249,588.81 and 100,288.18 is: 138,412.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,842.74 : 249,588.81 = 100,288.18 : x
  2. Step 2: Convert to fraction form
    180,842.74/249,588.81 = 100,288.18/x
  3. Step 3: Cross multiply
    180,842.74x = 249,588.81 × 100,288.18
  4. Step 4: Simplify right side
    180,842.74x = 25,030,807,503.27
  5. Step 5: Solve for x
    x = 25,030,807,503.27/180,842.74
  6. Step 6: Final answer
    x = 138,412.01

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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.