Home / 157,118.89-235,678.81-38,790.24

Finding the Fourth Proportional to 157,118.89, 235,678.81 and 38,790.24

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Solution

The fourth proportional to 157,118.89, 235,678.81 and 38,790.24 is: 58,185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,118.89 : 235,678.81 = 38,790.24 : x
  2. Step 2: Convert to fraction form
    157,118.89/235,678.81 = 38,790.24/x
  3. Step 3: Cross multiply
    157,118.89x = 235,678.81 × 38,790.24
  4. Step 4: Simplify right side
    157,118.89x = 9,142,037,602.81
  5. Step 5: Solve for x
    x = 9,142,037,602.81/157,118.89
  6. Step 6: Final answer
    x = 58,185.48

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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.