Home / 137,756.07-190,054.48-90,036.94

Finding the Fourth Proportional to 137,756.07, 190,054.48 and 90,036.94

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Solution

The fourth proportional to 137,756.07, 190,054.48 and 90,036.94 is: 124,219.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,756.07 : 190,054.48 = 90,036.94 : x
  2. Step 2: Convert to fraction form
    137,756.07/190,054.48 = 90,036.94/x
  3. Step 3: Cross multiply
    137,756.07x = 190,054.48 × 90,036.94
  4. Step 4: Simplify right side
    137,756.07x = 17,111,923,812.49
  5. Step 5: Solve for x
    x = 17,111,923,812.49/137,756.07
  6. Step 6: Final answer
    x = 124,219.02

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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.