Home / 112,968.61-155,898.27-61,980.41

Finding the Fourth Proportional to 112,968.61, 155,898.27 and 61,980.41

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Solution

The fourth proportional to 112,968.61, 155,898.27 and 61,980.41 is: 85,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,968.61 : 155,898.27 = 61,980.41 : x
  2. Step 2: Convert to fraction form
    112,968.61/155,898.27 = 61,980.41/x
  3. Step 3: Cross multiply
    112,968.61x = 155,898.27 × 61,980.41
  4. Step 4: Simplify right side
    112,968.61x = 9,662,639,082.64
  5. Step 5: Solve for x
    x = 9,662,639,082.64/112,968.61
  6. Step 6: Final answer
    x = 85,533.84

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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.