Home / 135,534.57-187,038.81-75,106.23

Finding the Fourth Proportional to 135,534.57, 187,038.81 and 75,106.23

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Solution

The fourth proportional to 135,534.57, 187,038.81 and 75,106.23 is: 103,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,534.57 : 187,038.81 = 75,106.23 : x
  2. Step 2: Convert to fraction form
    135,534.57/187,038.81 = 75,106.23/x
  3. Step 3: Cross multiply
    135,534.57x = 187,038.81 × 75,106.23
  4. Step 4: Simplify right side
    135,534.57x = 14,047,779,882.79
  5. Step 5: Solve for x
    x = 14,047,779,882.79/135,534.57
  6. Step 6: Final answer
    x = 103,647.21

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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.