Home / 135,402.24-186,681.60-105,136.32

Finding the Fourth Proportional to 135,402.24, 186,681.60 and 105,136.32

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Solution

The fourth proportional to 135,402.24, 186,681.60 and 105,136.32 is: 144,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,402.24 : 186,681.60 = 105,136.32 : x
  2. Step 2: Convert to fraction form
    135,402.24/186,681.60 = 105,136.32/x
  3. Step 3: Cross multiply
    135,402.24x = 186,681.60 × 105,136.32
  4. Step 4: Simplify right side
    135,402.24x = 19,627,016,435.71
  5. Step 5: Solve for x
    x = 19,627,016,435.71/135,402.24
  6. Step 6: Final answer
    x = 144,953.41

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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.