Home / 113,869.34-157,137.90-62,880.80

Finding the Fourth Proportional to 113,869.34, 157,137.90 and 62,880.80

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Solution

The fourth proportional to 113,869.34, 157,137.90 and 62,880.80 is: 86,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,869.34 : 157,137.90 = 62,880.80 : x
  2. Step 2: Convert to fraction form
    113,869.34/157,137.90 = 62,880.80/x
  3. Step 3: Cross multiply
    113,869.34x = 157,137.90 × 62,880.80
  4. Step 4: Simplify right side
    113,869.34x = 9,880,956,547.92
  5. Step 5: Solve for x
    x = 9,880,956,547.92/113,869.34
  6. Step 6: Final answer
    x = 86,774.52

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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.