Home / 142,291.60-213,437.40-133,075.60

Finding the Fourth Proportional to 142,291.60, 213,437.40 and 133,075.60

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Solution

The fourth proportional to 142,291.60, 213,437.40 and 133,075.60 is: 199,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,291.60 : 213,437.40 = 133,075.60 : x
  2. Step 2: Convert to fraction form
    142,291.60/213,437.40 = 133,075.60/x
  3. Step 3: Cross multiply
    142,291.60x = 213,437.40 × 133,075.60
  4. Step 4: Simplify right side
    142,291.60x = 28,403,310,067.44
  5. Step 5: Solve for x
    x = 28,403,310,067.44/142,291.60
  6. Step 6: Final answer
    x = 199,613.40

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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.