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Finding the Fourth Proportional to 98,158.56, 147,281.58 and 51,400.50

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Solution

The fourth proportional to 98,158.56, 147,281.58 and 51,400.50 is: 77,123.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,158.56 : 147,281.58 = 51,400.50 : x
  2. Step 2: Convert to fraction form
    98,158.56/147,281.58 = 51,400.50/x
  3. Step 3: Cross multiply
    98,158.56x = 147,281.58 × 51,400.50
  4. Step 4: Simplify right side
    98,158.56x = 7,570,346,852.79
  5. Step 5: Solve for x
    x = 7,570,346,852.79/98,158.56
  6. Step 6: Final answer
    x = 77,123.65

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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.