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Finding the Fourth Proportional to 127,423, 175,843.74 and 70,845.34

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Solution

The fourth proportional to 127,423, 175,843.74 and 70,845.34 is: 97,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,423 : 175,843.74 = 70,845.34 : x
  2. Step 2: Convert to fraction form
    127,423/175,843.74 = 70,845.34/x
  3. Step 3: Cross multiply
    127,423x = 175,843.74 × 70,845.34
  4. Step 4: Simplify right side
    127,423x = 12,457,709,547.17
  5. Step 5: Solve for x
    x = 12,457,709,547.17/127,423
  6. Step 6: Final answer
    x = 97,766.57

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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.