Home / 116,137.53-174,088.62-78,701.40

Finding the Fourth Proportional to 116,137.53, 174,088.62 and 78,701.40

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Solution

The fourth proportional to 116,137.53, 174,088.62 and 78,701.40 is: 117,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,137.53 : 174,088.62 = 78,701.40 : x
  2. Step 2: Convert to fraction form
    116,137.53/174,088.62 = 78,701.40/x
  3. Step 3: Cross multiply
    116,137.53x = 174,088.62 × 78,701.40
  4. Step 4: Simplify right side
    116,137.53x = 13,701,018,118.07
  5. Step 5: Solve for x
    x = 13,701,018,118.07/116,137.53
  6. Step 6: Final answer
    x = 117,972.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.