Home / 157,828.60-236,888.70-78,999.40

Finding the Fourth Proportional to 157,828.60, 236,888.70 and 78,999.40

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Solution

The fourth proportional to 157,828.60, 236,888.70 and 78,999.40 is: 118,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,828.60 : 236,888.70 = 78,999.40 : x
  2. Step 2: Convert to fraction form
    157,828.60/236,888.70 = 78,999.40/x
  3. Step 3: Cross multiply
    157,828.60x = 236,888.70 × 78,999.40
  4. Step 4: Simplify right side
    157,828.60x = 18,714,065,166.78
  5. Step 5: Solve for x
    x = 18,714,065,166.78/157,828.60
  6. Step 6: Final answer
    x = 118,572.08

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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.