Home / 113,495.05-156,455.06-72,653.16

Finding the Fourth Proportional to 113,495.05, 156,455.06 and 72,653.16

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Solution

The fourth proportional to 113,495.05, 156,455.06 and 72,653.16 is: 100,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,495.05 : 156,455.06 = 72,653.16 : x
  2. Step 2: Convert to fraction form
    113,495.05/156,455.06 = 72,653.16/x
  3. Step 3: Cross multiply
    113,495.05x = 156,455.06 × 72,653.16
  4. Step 4: Simplify right side
    113,495.05x = 11,366,955,139.10
  5. Step 5: Solve for x
    x = 11,366,955,139.10/113,495.05
  6. Step 6: Final answer
    x = 100,153.75

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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.