Home / 118,430.32-163,428.68-64,712.80

Finding the Fourth Proportional to 118,430.32, 163,428.68 and 64,712.80

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Solution

The fourth proportional to 118,430.32, 163,428.68 and 64,712.80 is: 89,300.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,430.32 : 163,428.68 = 64,712.80 : x
  2. Step 2: Convert to fraction form
    118,430.32/163,428.68 = 64,712.80/x
  3. Step 3: Cross multiply
    118,430.32x = 163,428.68 × 64,712.80
  4. Step 4: Simplify right side
    118,430.32x = 10,575,927,483.10
  5. Step 5: Solve for x
    x = 10,575,927,483.10/118,430.32
  6. Step 6: Final answer
    x = 89,300.84

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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.