Home / 127,130.04-190,756.50-52,305.40

Finding the Fourth Proportional to 127,130.04, 190,756.50 and 52,305.40

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Solution

The fourth proportional to 127,130.04, 190,756.50 and 52,305.40 is: 78,483.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.04 : 190,756.50 = 52,305.40 : x
  2. Step 2: Convert to fraction form
    127,130.04/190,756.50 = 52,305.40/x
  3. Step 3: Cross multiply
    127,130.04x = 190,756.50 × 52,305.40
  4. Step 4: Simplify right side
    127,130.04x = 9,977,595,035.10
  5. Step 5: Solve for x
    x = 9,977,595,035.10/127,130.04
  6. Step 6: Final answer
    x = 78,483.38

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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.