Home / 190,013.28-285,060.51-70,070.52

Finding the Fourth Proportional to 190,013.28, 285,060.51 and 70,070.52

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Solution

The fourth proportional to 190,013.28, 285,060.51 and 70,070.52 is: 105,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,013.28 : 285,060.51 = 70,070.52 : x
  2. Step 2: Convert to fraction form
    190,013.28/285,060.51 = 70,070.52/x
  3. Step 3: Cross multiply
    190,013.28x = 285,060.51 × 70,070.52
  4. Step 4: Simplify right side
    190,013.28x = 19,974,338,167.17
  5. Step 5: Solve for x
    x = 19,974,338,167.17/190,013.28
  6. Step 6: Final answer
    x = 105,120.75

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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.