Home / 162,036.80-242,666.40-78,833.60

Finding the Fourth Proportional to 162,036.80, 242,666.40 and 78,833.60

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Solution

The fourth proportional to 162,036.80, 242,666.40 and 78,833.60 is: 118,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,036.80 : 242,666.40 = 78,833.60 : x
  2. Step 2: Convert to fraction form
    162,036.80/242,666.40 = 78,833.60/x
  3. Step 3: Cross multiply
    162,036.80x = 242,666.40 × 78,833.60
  4. Step 4: Simplify right side
    162,036.80x = 19,130,265,911.04
  5. Step 5: Solve for x
    x = 19,130,265,911.04/162,036.80
  6. Step 6: Final answer
    x = 118,061.24

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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.