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Finding the Fourth Proportional to 139,461.04, 192,457.74 and 75,798.85

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Solution

The fourth proportional to 139,461.04, 192,457.74 and 75,798.85 is: 104,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,461.04 : 192,457.74 = 75,798.85 : x
  2. Step 2: Convert to fraction form
    139,461.04/192,457.74 = 75,798.85/x
  3. Step 3: Cross multiply
    139,461.04x = 192,457.74 × 75,798.85
  4. Step 4: Simplify right side
    139,461.04x = 14,588,075,365.60
  5. Step 5: Solve for x
    x = 14,588,075,365.60/139,461.04
  6. Step 6: Final answer
    x = 104,603.23

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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.