Home / 127,312.09-175,617.58-79,482.40

Finding the Fourth Proportional to 127,312.09, 175,617.58 and 79,482.40

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Solution

The fourth proportional to 127,312.09, 175,617.58 and 79,482.40 is: 109,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,312.09 : 175,617.58 = 79,482.40 : x
  2. Step 2: Convert to fraction form
    127,312.09/175,617.58 = 79,482.40/x
  3. Step 3: Cross multiply
    127,312.09x = 175,617.58 × 79,482.40
  4. Step 4: Simplify right side
    127,312.09x = 13,958,506,740.59
  5. Step 5: Solve for x
    x = 13,958,506,740.59/127,312.09
  6. Step 6: Final answer
    x = 109,640.07

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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.