Home / 118,039.07-162,880.19-72,075.59

Finding the Fourth Proportional to 118,039.07, 162,880.19 and 72,075.59

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Solution

The fourth proportional to 118,039.07, 162,880.19 and 72,075.59 is: 99,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,039.07 : 162,880.19 = 72,075.59 : x
  2. Step 2: Convert to fraction form
    118,039.07/162,880.19 = 72,075.59/x
  3. Step 3: Cross multiply
    118,039.07x = 162,880.19 × 72,075.59
  4. Step 4: Simplify right side
    118,039.07x = 11,739,685,433.18
  5. Step 5: Solve for x
    x = 11,739,685,433.18/118,039.07
  6. Step 6: Final answer
    x = 99,455.93

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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.