Home / 180,782.55-249,453.72-100,210.05

Finding the Fourth Proportional to 180,782.55, 249,453.72 and 100,210.05

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Solution

The fourth proportional to 180,782.55, 249,453.72 and 100,210.05 is: 138,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,782.55 : 249,453.72 = 100,210.05 : x
  2. Step 2: Convert to fraction form
    180,782.55/249,453.72 = 100,210.05/x
  3. Step 3: Cross multiply
    180,782.55x = 249,453.72 × 100,210.05
  4. Step 4: Simplify right side
    180,782.55x = 24,997,769,753.89
  5. Step 5: Solve for x
    x = 24,997,769,753.89/180,782.55
  6. Step 6: Final answer
    x = 138,275.35

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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.