Home / 133,312.07-199,968.31-53,386.03

Finding the Fourth Proportional to 133,312.07, 199,968.31 and 53,386.03

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Solution

The fourth proportional to 133,312.07, 199,968.31 and 53,386.03 is: 80,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,312.07 : 199,968.31 = 53,386.03 : x
  2. Step 2: Convert to fraction form
    133,312.07/199,968.31 = 53,386.03/x
  3. Step 3: Cross multiply
    133,312.07x = 199,968.31 × 53,386.03
  4. Step 4: Simplify right side
    133,312.07x = 10,675,514,196.71
  5. Step 5: Solve for x
    x = 10,675,514,196.71/133,312.07
  6. Step 6: Final answer
    x = 80,079.13

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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.