Home / 90,271.98-135,407.40-70,567.14

Finding the Fourth Proportional to 90,271.98, 135,407.40 and 70,567.14

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Solution

The fourth proportional to 90,271.98, 135,407.40 and 70,567.14 is: 105,850.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,271.98 : 135,407.40 = 70,567.14 : x
  2. Step 2: Convert to fraction form
    90,271.98/135,407.40 = 70,567.14/x
  3. Step 3: Cross multiply
    90,271.98x = 135,407.40 × 70,567.14
  4. Step 4: Simplify right side
    90,271.98x = 9,555,312,952.84
  5. Step 5: Solve for x
    x = 9,555,312,952.84/90,271.98
  6. Step 6: Final answer
    x = 105,850.26

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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.