Home / 248,013.06-342,242.68-139,111.40

Finding the Fourth Proportional to 248,013.06, 342,242.68 and 139,111.40

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Solution

The fourth proportional to 248,013.06, 342,242.68 and 139,111.40 is: 191,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,013.06 : 342,242.68 = 139,111.40 : x
  2. Step 2: Convert to fraction form
    248,013.06/342,242.68 = 139,111.40/x
  3. Step 3: Cross multiply
    248,013.06x = 342,242.68 × 139,111.40
  4. Step 4: Simplify right side
    248,013.06x = 47,609,858,354.55
  5. Step 5: Solve for x
    x = 47,609,858,354.55/248,013.06
  6. Step 6: Final answer
    x = 191,965.13

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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.