Home / 151,294.51-208,779.69-86,717.45

Finding the Fourth Proportional to 151,294.51, 208,779.69 and 86,717.45

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Solution

The fourth proportional to 151,294.51, 208,779.69 and 86,717.45 is: 119,666.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,294.51 : 208,779.69 = 86,717.45 : x
  2. Step 2: Convert to fraction form
    151,294.51/208,779.69 = 86,717.45/x
  3. Step 3: Cross multiply
    151,294.51x = 208,779.69 × 86,717.45
  4. Step 4: Simplify right side
    151,294.51x = 18,104,842,328.59
  5. Step 5: Solve for x
    x = 18,104,842,328.59/151,294.51
  6. Step 6: Final answer
    x = 119,666.22

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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.