Home / 113,591.04-156,782.36-70,603

Finding the Fourth Proportional to 113,591.04, 156,782.36 and 70,603

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Solution

The fourth proportional to 113,591.04, 156,782.36 and 70,603 is: 97,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,591.04 : 156,782.36 = 70,603 : x
  2. Step 2: Convert to fraction form
    113,591.04/156,782.36 = 70,603/x
  3. Step 3: Cross multiply
    113,591.04x = 156,782.36 × 70,603
  4. Step 4: Simplify right side
    113,591.04x = 11,069,304,963.08
  5. Step 5: Solve for x
    x = 11,069,304,963.08/113,591.04
  6. Step 6: Final answer
    x = 97,448.75

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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.