Home / 180,680.53-249,341.12-100,109.34

Finding the Fourth Proportional to 180,680.53, 249,341.12 and 100,109.34

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Solution

The fourth proportional to 180,680.53, 249,341.12 and 100,109.34 is: 138,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,680.53 : 249,341.12 = 100,109.34 : x
  2. Step 2: Convert to fraction form
    180,680.53/249,341.12 = 100,109.34/x
  3. Step 3: Cross multiply
    180,680.53x = 249,341.12 × 100,109.34
  4. Step 4: Simplify right side
    180,680.53x = 24,961,373,210.81
  5. Step 5: Solve for x
    x = 24,961,373,210.81/180,680.53
  6. Step 6: Final answer
    x = 138,151.98

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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.