Home / 145,767.05-201,089.79-85,300.61

Finding the Fourth Proportional to 145,767.05, 201,089.79 and 85,300.61

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Solution

The fourth proportional to 145,767.05, 201,089.79 and 85,300.61 is: 117,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,767.05 : 201,089.79 = 85,300.61 : x
  2. Step 2: Convert to fraction form
    145,767.05/201,089.79 = 85,300.61/x
  3. Step 3: Cross multiply
    145,767.05x = 201,089.79 × 85,300.61
  4. Step 4: Simplify right side
    145,767.05x = 17,153,082,254.50
  5. Step 5: Solve for x
    x = 17,153,082,254.50/145,767.05
  6. Step 6: Final answer
    x = 117,674.62

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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.