Home / 136,937.99-188,955.64-76,501.12

Finding the Fourth Proportional to 136,937.99, 188,955.64 and 76,501.12

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Solution

The fourth proportional to 136,937.99, 188,955.64 and 76,501.12 is: 105,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,937.99 : 188,955.64 = 76,501.12 : x
  2. Step 2: Convert to fraction form
    136,937.99/188,955.64 = 76,501.12/x
  3. Step 3: Cross multiply
    136,937.99x = 188,955.64 × 76,501.12
  4. Step 4: Simplify right side
    136,937.99x = 14,455,317,899.06
  5. Step 5: Solve for x
    x = 14,455,317,899.06/136,937.99
  6. Step 6: Final answer
    x = 105,561.05

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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.