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Finding the Fourth Proportional to 127,459.62, 175,893.20 and 70,870.50

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Solution

The fourth proportional to 127,459.62, 175,893.20 and 70,870.50 is: 97,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,459.62 : 175,893.20 = 70,870.50 : x
  2. Step 2: Convert to fraction form
    127,459.62/175,893.20 = 70,870.50/x
  3. Step 3: Cross multiply
    127,459.62x = 175,893.20 × 70,870.50
  4. Step 4: Simplify right side
    127,459.62x = 12,465,639,030.60
  5. Step 5: Solve for x
    x = 12,465,639,030.60/127,459.62
  6. Step 6: Final answer
    x = 97,800.69

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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.