Home / 112,154.40-168,296.40-42,040.80

Finding the Fourth Proportional to 112,154.40, 168,296.40 and 42,040.80

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Solution

The fourth proportional to 112,154.40, 168,296.40 and 42,040.80 is: 63,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,154.40 : 168,296.40 = 42,040.80 : x
  2. Step 2: Convert to fraction form
    112,154.40/168,296.40 = 42,040.80/x
  3. Step 3: Cross multiply
    112,154.40x = 168,296.40 × 42,040.80
  4. Step 4: Simplify right side
    112,154.40x = 7,075,315,293.12
  5. Step 5: Solve for x
    x = 7,075,315,293.12/112,154.40
  6. Step 6: Final answer
    x = 63,085.49

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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.