Home / 180,783.55-249,455.10-100,211.05

Finding the Fourth Proportional to 180,783.55, 249,455.10 and 100,211.05

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Solution

The fourth proportional to 180,783.55, 249,455.10 and 100,211.05 is: 138,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,783.55 : 249,455.10 = 100,211.05 : x
  2. Step 2: Convert to fraction form
    180,783.55/249,455.10 = 100,211.05/x
  3. Step 3: Cross multiply
    180,783.55x = 249,455.10 × 100,211.05
  4. Step 4: Simplify right side
    180,783.55x = 24,998,157,498.86
  5. Step 5: Solve for x
    x = 24,998,157,498.86/180,783.55
  6. Step 6: Final answer
    x = 138,276.73

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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.