Home / 118,790.03-163,934.32-65,075.03

Finding the Fourth Proportional to 118,790.03, 163,934.32 and 65,075.03

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Solution

The fourth proportional to 118,790.03, 163,934.32 and 65,075.03 is: 89,805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,790.03 : 163,934.32 = 65,075.03 : x
  2. Step 2: Convert to fraction form
    118,790.03/163,934.32 = 65,075.03/x
  3. Step 3: Cross multiply
    118,790.03x = 163,934.32 × 65,075.03
  4. Step 4: Simplify right side
    118,790.03x = 10,668,031,364.55
  5. Step 5: Solve for x
    x = 10,668,031,364.55/118,790.03
  6. Step 6: Final answer
    x = 89,805.78

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1.5x scale

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.