Home / 249,741.20-374,611.80-81,277.40

Finding the Fourth Proportional to 249,741.20, 374,611.80 and 81,277.40

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Solution

The fourth proportional to 249,741.20, 374,611.80 and 81,277.40 is: 121,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,741.20 : 374,611.80 = 81,277.40 : x
  2. Step 2: Convert to fraction form
    249,741.20/374,611.80 = 81,277.40/x
  3. Step 3: Cross multiply
    249,741.20x = 374,611.80 × 81,277.40
  4. Step 4: Simplify right side
    249,741.20x = 30,447,473,113.32
  5. Step 5: Solve for x
    x = 30,447,473,113.32/249,741.20
  6. Step 6: Final answer
    x = 121,916.10

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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.