Home / 257,076.85-385,611.15-70,088.35

Finding the Fourth Proportional to 257,076.85, 385,611.15 and 70,088.35

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Solution

The fourth proportional to 257,076.85, 385,611.15 and 70,088.35 is: 105,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,076.85 : 385,611.15 = 70,088.35 : x
  2. Step 2: Convert to fraction form
    257,076.85/385,611.15 = 70,088.35/x
  3. Step 3: Cross multiply
    257,076.85x = 385,611.15 × 70,088.35
  4. Step 4: Simplify right side
    257,076.85x = 27,026,849,245.10
  5. Step 5: Solve for x
    x = 27,026,849,245.10/257,076.85
  6. Step 6: Final answer
    x = 105,131.40

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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.