Home / 104,985.40-157,094.10-77,337.40

Finding the Fourth Proportional to 104,985.40, 157,094.10 and 77,337.40

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Solution

The fourth proportional to 104,985.40, 157,094.10 and 77,337.40 is: 115,723.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,985.40 : 157,094.10 = 77,337.40 : x
  2. Step 2: Convert to fraction form
    104,985.40/157,094.10 = 77,337.40/x
  3. Step 3: Cross multiply
    104,985.40x = 157,094.10 × 77,337.40
  4. Step 4: Simplify right side
    104,985.40x = 12,149,249,249.34
  5. Step 5: Solve for x
    x = 12,149,249,249.34/104,985.40
  6. Step 6: Final answer
    x = 115,723.23

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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.