Home / 180,588.18-249,213.81-100,017.28

Finding the Fourth Proportional to 180,588.18, 249,213.81 and 100,017.28

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Solution

The fourth proportional to 180,588.18, 249,213.81 and 100,017.28 is: 138,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,588.18 : 249,213.81 = 100,017.28 : x
  2. Step 2: Convert to fraction form
    180,588.18/249,213.81 = 100,017.28/x
  3. Step 3: Cross multiply
    180,588.18x = 249,213.81 × 100,017.28
  4. Step 4: Simplify right side
    180,588.18x = 24,925,688,101.22
  5. Step 5: Solve for x
    x = 24,925,688,101.22/180,588.18
  6. Step 6: Final answer
    x = 138,025.02

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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.