Home / 112,653.65-155,461.81-61,666.39

Finding the Fourth Proportional to 112,653.65, 155,461.81 and 61,666.39

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Solution

The fourth proportional to 112,653.65, 155,461.81 and 61,666.39 is: 85,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,653.65 : 155,461.81 = 61,666.39 : x
  2. Step 2: Convert to fraction form
    112,653.65/155,461.81 = 61,666.39/x
  3. Step 3: Cross multiply
    112,653.65x = 155,461.81 × 61,666.39
  4. Step 4: Simplify right side
    112,653.65x = 9,586,768,297.23
  5. Step 5: Solve for x
    x = 9,586,768,297.23/112,653.65
  6. Step 6: Final answer
    x = 85,099.49

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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.