Home / 180,902.49-249,628.68-100,328.55

Finding the Fourth Proportional to 180,902.49, 249,628.68 and 100,328.55

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Solution

The fourth proportional to 180,902.49, 249,628.68 and 100,328.55 is: 138,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,902.49 : 249,628.68 = 100,328.55 : x
  2. Step 2: Convert to fraction form
    180,902.49/249,628.68 = 100,328.55/x
  3. Step 3: Cross multiply
    180,902.49x = 249,628.68 × 100,328.55
  4. Step 4: Simplify right side
    180,902.49x = 25,044,883,502.81
  5. Step 5: Solve for x
    x = 25,044,883,502.81/180,902.49
  6. Step 6: Final answer
    x = 138,444.11

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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.