Home / 119,353.07-164,703.95-65,638.08

Finding the Fourth Proportional to 119,353.07, 164,703.95 and 65,638.08

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Solution

The fourth proportional to 119,353.07, 164,703.95 and 65,638.08 is: 90,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,353.07 : 164,703.95 = 65,638.08 : x
  2. Step 2: Convert to fraction form
    119,353.07/164,703.95 = 65,638.08/x
  3. Step 3: Cross multiply
    119,353.07x = 164,703.95 × 65,638.08
  4. Step 4: Simplify right side
    119,353.07x = 10,810,850,718.23
  5. Step 5: Solve for x
    x = 10,810,850,718.23/119,353.07
  6. Step 6: Final answer
    x = 90,578.74

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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.