Home / 190,041.72-262,253.88-105,159.40

Finding the Fourth Proportional to 190,041.72, 262,253.88 and 105,159.40

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Solution

The fourth proportional to 190,041.72, 262,253.88 and 105,159.40 is: 145,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,041.72 : 262,253.88 = 105,159.40 : x
  2. Step 2: Convert to fraction form
    190,041.72/262,253.88 = 105,159.40/x
  3. Step 3: Cross multiply
    190,041.72x = 262,253.88 × 105,159.40
  4. Step 4: Simplify right side
    190,041.72x = 27,578,460,668.47
  5. Step 5: Solve for x
    x = 27,578,460,668.47/190,041.72
  6. Step 6: Final answer
    x = 145,117.93

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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.