Home / 130,669.80-196,069.50-51,782.28

Finding the Fourth Proportional to 130,669.80, 196,069.50 and 51,782.28

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Solution

The fourth proportional to 130,669.80, 196,069.50 and 51,782.28 is: 77,699.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,669.80 : 196,069.50 = 51,782.28 : x
  2. Step 2: Convert to fraction form
    130,669.80/196,069.50 = 51,782.28/x
  3. Step 3: Cross multiply
    130,669.80x = 196,069.50 × 51,782.28
  4. Step 4: Simplify right side
    130,669.80x = 10,152,925,748.46
  5. Step 5: Solve for x
    x = 10,152,925,748.46/130,669.80
  6. Step 6: Final answer
    x = 77,699.10

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1.5x scale

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.