Home / 125,501.94-187,782.37-74,715.20

Finding the Fourth Proportional to 125,501.94, 187,782.37 and 74,715.20

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Solution

The fourth proportional to 125,501.94, 187,782.37 and 74,715.20 is: 111,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,501.94 : 187,782.37 = 74,715.20 : x
  2. Step 2: Convert to fraction form
    125,501.94/187,782.37 = 74,715.20/x
  3. Step 3: Cross multiply
    125,501.94x = 187,782.37 × 74,715.20
  4. Step 4: Simplify right side
    125,501.94x = 14,030,196,909.51
  5. Step 5: Solve for x
    x = 14,030,196,909.51/125,501.94
  6. Step 6: Final answer
    x = 111,792.67

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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.