Home / 107,021.96-147,688.80-61,700.02

Finding the Fourth Proportional to 107,021.96, 147,688.80 and 61,700.02

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Solution

The fourth proportional to 107,021.96, 147,688.80 and 61,700.02 is: 85,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,021.96 : 147,688.80 = 61,700.02 : x
  2. Step 2: Convert to fraction form
    107,021.96/147,688.80 = 61,700.02/x
  3. Step 3: Cross multiply
    107,021.96x = 147,688.80 × 61,700.02
  4. Step 4: Simplify right side
    107,021.96x = 9,112,401,913.78
  5. Step 5: Solve for x
    x = 9,112,401,913.78/107,021.96
  6. Step 6: Final answer
    x = 85,145.16

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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.