Home / 210,254.07-315,193.53-77,103.21

Finding the Fourth Proportional to 210,254.07, 315,193.53 and 77,103.21

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Solution

The fourth proportional to 210,254.07, 315,193.53 and 77,103.21 is: 115,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,254.07 : 315,193.53 = 77,103.21 : x
  2. Step 2: Convert to fraction form
    210,254.07/315,193.53 = 77,103.21/x
  3. Step 3: Cross multiply
    210,254.07x = 315,193.53 × 77,103.21
  4. Step 4: Simplify right side
    210,254.07x = 24,302,432,934.23
  5. Step 5: Solve for x
    x = 24,302,432,934.23/210,254.07
  6. Step 6: Final answer
    x = 115,586.03

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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.