Home / 153,161.12-211,360.08-86,092.64

Finding the Fourth Proportional to 153,161.12, 211,360.08 and 86,092.64

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Solution

The fourth proportional to 153,161.12, 211,360.08 and 86,092.64 is: 118,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,161.12 : 211,360.08 = 86,092.64 : x
  2. Step 2: Convert to fraction form
    153,161.12/211,360.08 = 86,092.64/x
  3. Step 3: Cross multiply
    153,161.12x = 211,360.08 × 86,092.64
  4. Step 4: Simplify right side
    153,161.12x = 18,196,547,277.81
  5. Step 5: Solve for x
    x = 18,196,547,277.81/153,161.12
  6. Step 6: Final answer
    x = 118,806.57

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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.