Home / 180,877.06-249,623.13-100,312.30

Finding the Fourth Proportional to 180,877.06, 249,623.13 and 100,312.30

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Solution

The fourth proportional to 180,877.06, 249,623.13 and 100,312.30 is: 138,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,877.06 : 249,623.13 = 100,312.30 : x
  2. Step 2: Convert to fraction form
    180,877.06/249,623.13 = 100,312.30/x
  3. Step 3: Cross multiply
    180,877.06x = 249,623.13 × 100,312.30
  4. Step 4: Simplify right side
    180,877.06x = 25,040,270,303.50
  5. Step 5: Solve for x
    x = 25,040,270,303.50/180,877.06
  6. Step 6: Final answer
    x = 138,438.07

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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.