Home / 115,969.07-173,703.67-78,322.13

Finding the Fourth Proportional to 115,969.07, 173,703.67 and 78,322.13

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Solution

The fourth proportional to 115,969.07, 173,703.67 and 78,322.13 is: 117,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969.07 : 173,703.67 = 78,322.13 : x
  2. Step 2: Convert to fraction form
    115,969.07/173,703.67 = 78,322.13/x
  3. Step 3: Cross multiply
    115,969.07x = 173,703.67 × 78,322.13
  4. Step 4: Simplify right side
    115,969.07x = 13,604,841,423.22
  5. Step 5: Solve for x
    x = 13,604,841,423.22/115,969.07
  6. Step 6: Final answer
    x = 117,314.40

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1.5x scale

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.