Home / 103,574.49-142,998.47-70,923.55

Finding the Fourth Proportional to 103,574.49, 142,998.47 and 70,923.55

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Solution

The fourth proportional to 103,574.49, 142,998.47 and 70,923.55 is: 97,919.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.49 : 142,998.47 = 70,923.55 : x
  2. Step 2: Convert to fraction form
    103,574.49/142,998.47 = 70,923.55/x
  3. Step 3: Cross multiply
    103,574.49x = 142,998.47 × 70,923.55
  4. Step 4: Simplify right side
    103,574.49x = 10,141,958,421.98
  5. Step 5: Solve for x
    x = 10,141,958,421.98/103,574.49
  6. Step 6: Final answer
    x = 97,919.46

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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.