Home / 249,430.12-374,142.48-71,931.40

Finding the Fourth Proportional to 249,430.12, 374,142.48 and 71,931.40

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Solution

The fourth proportional to 249,430.12, 374,142.48 and 71,931.40 is: 107,896.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,430.12 : 374,142.48 = 71,931.40 : x
  2. Step 2: Convert to fraction form
    249,430.12/374,142.48 = 71,931.40/x
  3. Step 3: Cross multiply
    249,430.12x = 374,142.48 × 71,931.40
  4. Step 4: Simplify right side
    249,430.12x = 26,912,592,385.87
  5. Step 5: Solve for x
    x = 26,912,592,385.87/249,430.12
  6. Step 6: Final answer
    x = 107,896.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.