Home / 155,094.42-214,031.16-87,111.40

Finding the Fourth Proportional to 155,094.42, 214,031.16 and 87,111.40

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Solution

The fourth proportional to 155,094.42, 214,031.16 and 87,111.40 is: 120,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,094.42 : 214,031.16 = 87,111.40 : x
  2. Step 2: Convert to fraction form
    155,094.42/214,031.16 = 87,111.40/x
  3. Step 3: Cross multiply
    155,094.42x = 214,031.16 × 87,111.40
  4. Step 4: Simplify right side
    155,094.42x = 18,644,553,991.22
  5. Step 5: Solve for x
    x = 18,644,553,991.22/155,094.42
  6. Step 6: Final answer
    x = 120,214.22

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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.