Home / 180,950.60-249,720.02-100,378.18

Finding the Fourth Proportional to 180,950.60, 249,720.02 and 100,378.18

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Solution

The fourth proportional to 180,950.60, 249,720.02 and 100,378.18 is: 138,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,950.60 : 249,720.02 = 100,378.18 : x
  2. Step 2: Convert to fraction form
    180,950.60/249,720.02 = 100,378.18/x
  3. Step 3: Cross multiply
    180,950.60x = 249,720.02 × 100,378.18
  4. Step 4: Simplify right side
    180,950.60x = 25,066,441,117.16
  5. Step 5: Solve for x
    x = 25,066,441,117.16/180,950.60
  6. Step 6: Final answer
    x = 138,526.43

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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.