Home / 459,772.32-689,670.08-127,351.20

Finding the Fourth Proportional to 459,772.32, 689,670.08 and 127,351.20

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Solution

The fourth proportional to 459,772.32, 689,670.08 and 127,351.20 is: 191,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,772.32 : 689,670.08 = 127,351.20 : x
  2. Step 2: Convert to fraction form
    459,772.32/689,670.08 = 127,351.20/x
  3. Step 3: Cross multiply
    459,772.32x = 689,670.08 × 127,351.20
  4. Step 4: Simplify right side
    459,772.32x = 87,830,312,292.10
  5. Step 5: Solve for x
    x = 87,830,312,292.10/459,772.32
  6. Step 6: Final answer
    x = 191,030.01

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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.